It's very easy to construct strawman examples where the worst ways to travel are compared to some abstract "best" way of learning as if that proves anything.

Reading up on something is a great way to discover the "high order bits" but it's very hard, apart from being in person, to ever pick up the "low order bits". I recently had a friend visit Australia and notice that attitudes towards mild speeding were very different from the US, not something you ever could have found from hours of trawling on the internet. One of the hundreds of different observations he made on the trip.

Every travel opportunity for me has used these low order bits to propel huge amounts of reading to fill in the missing high order bits that mesh with it. On a recent trip to South Korea, I became obessessed with the South Korean presentation (or rather, the lacuna) of the country's history 1955-1987. I went to countless history museums around Seoul just so I could see what they wanted attendees to know about Korea between the day-by-day recap of the Korean War and the miracle of K-Pop and industrialization. It was interesting the degree of frankness each museum had but all of them made me delve much more into the scholarly writing to see what was pointedly omitted.